150-600mm F5-6.3 DG OS HSM | Contemporary (Canon EF mount) firmware v1.03

It has improved the AF accuracy when the lens is attached with the SIGMA MOUNT CONVERTER MC-11 EF-E. Note: For customers who own SIGMA MOUNT CONVERTER MC-11 EF-E, it is necessary to update this to the latest firmware Ver1.02. It has reduced the operating sound of the lens diaphragm blades when attached with the SIGMA MOUNT CONVERTER MC-11 EF-E and used for shooting movies.It has improved the AF accuracy when the lens is used for shooting movies as well as Live View on EOS DIGITAL SLR cameras.*1It has reduced the operating sound of the lens diaphragm blades when used for shooting movies on EOS DIGITAL SLR cameras.*1It is fully functional with the Canon Digital Cinema Camera EOS C300 Mark II. *1 The degree of improvement differs depending on the camera used.